Playing with available light is my thing, sometimes light can render a regular scene monochrome by being at the right place at the right time. If the stars align and I find my shot it'll make the rest of the trip worthwhile, even when its just that one image (I shoot very little compared to my NG travel mates anyway).
Here's a few, yellow, blue, gold and yellow again. Some have been posted in other topics before but I don't mind if you don't mind
Backlit lighthouse in the mist, I kept moving the tripod to catch the the shadows in the sky phenomena
D700 with 24-70/2.8, Holland 2009Of course an image of the Blaue Stunde has to be part of this series
D800 with 35/1.4G, Norway 2013A Cheetah shot in the African golden hour
D700 with 200-400/4VR, South Africa 2009Africa waking up shot from a balloon on the NG Safari
D300 with 70-200/2.8VR, South Africa 2009